View Issue Details

IDProjectCategoryView StatusLast Update
0000420fileGeneralpublic2023-02-03 21:06
Reporterjstein Assigned Toadministrator  
PrioritynormalSeverityminorReproducibilityhave not tried
Status assignedResolutionopen 
Summary0000420: GARMIN Firmware images (new file format)
DescriptionThe format is documented on:
https://www.memotech.franken.de/FileFormats/Garmin_GCD_Format.pdf

You find examples here:
https://www.gpsrchive.com/GPSMAP/GPSMAP%2066sr/Firmware.html#x-Firmware%20History-5.50


head gupdate.gcd | strings
GARMINd
Copyright 1996-2013 by Garmin Ltd. or its subsidiaries.
@FYFRFKF


head gupdate.gcd | hexdump
0000000 4147 4d52 4e49 0064 0001 0001 02dc 1500
0000010 0000 0000 0000 0000 0000 0000 0000 0000
0000020 0000 0000 0000 0003 0009 d410 135c 4504
0000030 140d 0541 3700 4300 706f 7279 6769 7468
0000040 3120 3939 2d36 3032 3331 6220 2079 6147
0000050 6d72 6e69 4c20 6474 202e 726f 6920 7374
0000060 7320 6275 6973 6964 7261 6569 2e73 0001
0000070 0001 024b 8900 000f 0000 0000 0000 0000
0000080 0000 0000 0000 0000 0000 0000 0000 0000
*
0001000 0001 0001 0664 0a00 0a00 1510 0920 0d10
0001010 0310 0750 0a00 0800 0000 0942 6e00 260e
0001020 0802 0000 08ff 9ff0 dae5 0f41 2c00 0a9b
0001030 2e00 0a9b 3c00 0600 0000 0000 f000 9db9
0001040 0f38 6246 e8c7 ffff ffff ffff c2ff 0941
0001050 0000 0000 6e00 000e 2600 2402 0000 c800
0001060 0c00 a080 14e1 9f01 00e5 a010 08e3 8010
0001070 00e5 a000 4ae3 0102 01eb a000 00e3 9f11
0001080 3ae5 0102 01eb a000 f8e3 9f10 29e5 0102
0001090 01eb a000 42e3 0102 01eb a000 e8e3 9f10
00010a0 32e5 0102 01eb a000 e0e3 9f10 21e5 0102
00010b0 00eb 0f00 1fe1 0000 13e2 5000 00e3 a080
00010c0 0003 a0b0 0003 a0a0 0003 a090 d103 a000
00010d0 00e3 21f0 b8e1 9fd0 d2e5 a000 00e3 21f0
00010e0 b0e1 9fd0 d3e5 a000 00e3 21f0 a8e1 9fd0
00010f0 dbe5 a000 00e3 21f0 a0e1 9fd0 d7e5 a000
0001100 00e3 21f0 98e1 9fd0 dfe5 a000 00e3 21f0
0001110 90e1 9fd0 02e5 a01a 10e3 011f 00ee a010
0001120 10e3 051f 17ee 071f 17ee 081f 10ee 120f
0001130 00ee a000 ffe1 ffff 10ea 110f 01ee 800a
0001140 10e3 010f 10ee 120f 00ee a000 ffe1 ffff
0001150 01ea 8f00 10e2 2fff 40e1 b2f0 27fa 84f0
0001160 40f9 5946 5246 4b46 0046 2524 261c 271c
0001170 a01c a146 a246 a346 1046 7ef0 46f9 19b0
0001180 0004 1e10 0010 ff00 00ff fe00 00ff ff10
0001190 00ff fe10 20ff fe00 20ff fe02 40ff fe02
00011a0 80ff fe02 60ff fe02 f0ff e8a9 6e02 5100
00011b0 75e3 00f5 700a 5100 eae3 00f5 660a 5100
00011c0 00e3 010b 650a 5100 fee3 000a
TagsNo tags attached.

Activities

There are no notes attached to this issue.

Issue History

Date Modified Username Field Change
2023-02-03 20:35 jstein New Issue
2023-02-03 21:06 administrator Assigned To => administrator
2023-02-03 21:06 administrator Status new => assigned